No, this was a different specimen. Got it with the 9150 that I still need to find time to play with.

Further soaking and scrubbing reveals that two or possibly three of the pins of the CII's 68030 have been eaten away, along with several pins on an adjacent chip, and some of the pins on the power molex. That was by no means clear before, since what I had was essentially lumps of corrosion. This means, alas, that for my purposes, the board is toast.

I happen to have a spare Classic II logic board (awaiting re-capping), so a complete machine will still survive, but I hate to see these things destroyed.